import Vue from 'vue'
import Router from 'vue-router'
const Login = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Login.vue')
// import Login from '../components/Login.vue'
const Home = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Home.vue')
// import Home from '../components/Home.vue'
const Welcome = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Welcome.vue')
// import Welcome from '../components/Welcome.vue'
const Users = () => import(/* webpackChunkName: "users_rights_roles" */ '../components/user/Users.vue')
// import Users from '../components/user/Users.vue'
const Rights = () => import(/* webpackChunkName: "users_rights_roles" */ '../components/power/Rights')
// import Rights from '../components/power/Rights'
const Roles = () => import(/* webpackChunkName: "users_rights_roles" */ '../components/power/Roles')
// import Roles from '../components/power/Roles';
Vue.use(Router)

const router = new Router({
  routes: [
    {path: '/',redirect:'/login'},
    {path:'/login',component:Login},
    {path:'/home',
    component:Home,
    redirect:'/welcome',
    children : [{path:'/welcome',component:Welcome},
      {path:'/users',component:Users},
      {path:'/rights',component:Rights},
      {path:'/roles',component:Roles}]
  }
  ]
})
//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  //to 将要访问的路径
  //from 代表从哪个路径跳转而来
  //next 一个函数，表示放行
  // next() 放行  next('/login') 强制跳转

  if(to.path==='/login') return next();
  //获取token
  const tokenStr=window.sessionStorage.getItem('token');
  if(!tokenStr) return next('/login');
  next();
}
)
export default router
